发明名称 Camera lens system
摘要 A camera lens system consists of first to third lens elements arranged in this order from the object side. The first lens element is a meniscus lens having a weak refractive power and concave toward the object side, the second lens element is a lens having a positive refractive power and the third lens element is a lens having a negative refractive power. A stop or an assumed stop is disposed close to the object side end of the lens system or on the object side of the same formula nu 3</=40 is satisfied wherein nu 3 represents the Abbe's number of the third lens element.
申请公布号 US5617255(A) 申请公布日期 1997.04.01
申请号 US19940356586 申请日期 1994.12.15
申请人 FUJI PHOTO OPTICAL CO., LTD. 发明人 YAMADA, HIROSHI
分类号 G02B9/10;G02B9/12;G02B13/00;(IPC1-7):G02B9/12 主分类号 G02B9/10
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